(19)
(11) EP 4 292 644 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.03.2024 Bulletin 2024/11

(43) Date of publication A2:
20.12.2023 Bulletin 2023/51

(21) Application number: 23201841.6

(22) Date of filing: 10.08.2018
(51) International Patent Classification (IPC): 
A61N 1/05(2006.01)
A61N 1/372(2006.01)
 A61N 1/36(2006.01)
(52) Cooperative Patent Classification (CPC):
A61N 1/37247; A61N 1/0551; A61N 1/36071; A61N 1/36132; A61N 1/36185; A61N 1/36062; A61N 1/36164
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 11.08.2017 US 201762544656 P
03.07.2018 US 201862693543 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
22156488.3 / 4049711
18760182.8 / 3664888

(71) Applicant: Boston Scientific Neuromodulation Corporation
Valencia, CA 91355 (US)

(72) Inventors:
  • T. DOAN Que
    West Hills, CA 91304 (US)
  • GU, Jianwen
    Valencia, CA 91355 (US)
  • HUERTAS FERNANDEZ, Ismael
    Madrid 28042 (ES)
  • ESTELLER, Rosana
    Santa Clarita, CA 91390 (US)
  • A. MOFFITT, Michael
    Saugus, CA 91390 (US)

(74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB 
Siebertstrasse 3
81675 München
81675 München (DE)

   


(54) PARESTHESIA-FREE SPINAL CORD STIMULATION SYSTEM


(57) Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during "sweet spot searching" during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain. Beneficially, sub-perception stimulation at such low frequencies significantly lowers power consumption in the patient's neurostimulator.







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